The wireless mic offers professional full band audio 44.1~48kHz stereo CD quality, more than 6 times the frequency of conventional mono microphones. Real-Time Auto-Sync Technology, reduce the video post-editing. Support Multi-Channel Real-Time Mixing, it can synchronize the background music for phone and human voice in real time. lapel mic is compatible with iOS system and can be use with and iPad. Without usb c type interface connected to your mobile phone, it can not be used with android devices, unless you have a proper adapter No Adapter/Addtional APP/ Bluetooth needed, just 2 steps to connect. Step 1: Plug the receiver into your devices; Step 2: Power on the microphones.and the wireless lapel lavalier microphones can be clipped on the collar to free your hands for audio video recording, Wireless microphone for ,ipad etc. The microphone can be used directly for interviews Upgraded wireless microphone transmission technology, 65 feet stable audio signal transmission without cable and harsh noises. The reciever is powered by your device(Can Be Charged At The Same Time), the transmitter built in rechargeable batteries wos up to 4-6 hours.